Cutter-head.



C. G WILDERSON.

cuma HEAD.

APPLICATION FILED JUNE 19, 1911. 14;7 4 73 Patented July 20, 1915.

2 SHEETSSHEET 1. mf' yl.

i) 9 (is Q13 12 Z 12 ,5 5 ll WITNESSES INVENTOR C. G. WILDERSON.

CUTTER HEAD..

APPLlCATlON mm was 19. 1911.

1 1 %7A?& 1 1mm July 20, 1915.

2 SHEETS-SHEET 2.

INVENTOR O ("H/owl WITNESSES WWW 8 19 Q a QMMNWX CLINTON G. WILDERSON, 0F LEE'IONIA,

COMPANY, OF LEETONIA,

OHIO, ASSIGhTOR TO THE CRESCENT MACHINE 01-110, A CORPORATION OF OHIO.

CUTTEKHEAD.

T 0 all whom it may; concern Be it known that I, CLINTON G. Winonaso.', a. resident of Leetonia, in the county of Colombians and state of Chic, have invented a new and useful Improvement in (hitter- Heads, of which the following is a full,

clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is an cndview partially in section of one form of my improved cutter head; 1' ig. 2 is a side elevation of the same. Fig. 3 is a perspective View of one ot the keepers. Fig. 4 is a similar view or one of the auxiliary keepers. Fig. 5 is av perspective view of the hand wrench for ad usting the knives and clamping screws; and F 1g. 6 is a side elevation, partially in section, of a DIOdlfiO-U 1'01!!! o't' cutter head.

This invention relates to an improvement in cutter heads for wood working machines, and is designed to provide a cheap and ethcient device of this character, in which the. knives are securely held in their seats by means of a keeper, which is in turn held in place by an auxiliar keeper.

A further objectof my invent-ion is to so arrange"- the keeper and auxiliary keeper that they can be removed from the seat in a radial direction when the knife or cutter has been removed from the seat.

The precise nature of my invention wil be best understood by reference to the accompanying drawings,-.- which will now be described, it being premised, however, that changes may be made in the general arrangement of the parts, and deta1ls of construction, without departing from thcspn'it and scope of my invention as defined 1n the appended claims.

Referring to Figs. 1 to 5, the numeral 2 designates a cutter cad o; cylindrical form, which is provided with a plurality of long tudinally disposed grooves 3. are longitudinally disposed recesses opening into the grooves 3. p grooves 3 is a knife or cutter 5 which is retained in position by means ot a keeper 6 and an auxiliary keeper 7 The keeper Gis provided with an are shaped recess for the rece )tion of the concave or are shaped face of t c auxiliary kee er 7. Extending tangentially through tie wall of the cutter head 2 and opening into the grooves 3 are a. series of tapped openings 8, which are ar- Speciflc'ation of Letters Patent.

Seated within each of thesekeeper will be Patented July 21), 1915.

Application filed June 19, 1911. Serial No. 634,173.

ranged to receive set screws 9, each of which 1S provided with a wrench socket 10. Interposed between each keeper 6 and its knife 5 IS a spacer 11, although this spacer may be omitted and the knife made of the thickness equal to the thickness'of the knife, plus that of the spacer. Extending tangentially through the walls of the cutter head 2 are a series of openings 12, which open into their respective knife seats and are arran ed 'to receive a wrench for adjusting the lieighi of the knife, as hereinafter described.

The parts are assembled by first inserting the auxiliary keeper, after which the iiihinkceper is inserted in place. The spacer 11, together with the knife 5, are then placed in their proper positions, and the set screws for this knife are then moved inwardly to clamp the parts so as td retain them within the seat, but not suliiciently to positively lock them. A wrench 13, in Fig-5, is then inserted into one 01 the openings 12 at'1ihe end of and the knife Sis adjusted by means of the projection 14 which engages the bottom ed 6 of the knife, and by turning this wrenc 1, the knife can be raised to its proper position. The wrench is then inserted in the various openings through. the cutter head for adjusting the other portions of this knife, and after the knife has been leveled the wrench is removed'and the set screws forced home by inserting the projection 15 of the wrench into the sockets 10 of the set screws, and jamming them against the auxiliary keeper.

The auxiliary keeper 7 is provided with a projecting face 16 which is arranged to en gage the wall of the knife seat, and the set screws engage a flat face of this'auxiliary keeper, and when said screws are forced in wardly, the auxiliary keeper will he forced against the circular shaped recess in the keeper 6 and force the keeper against the cutter 5. the keeper 6 has been arrested, the auxiliary slightly rotated in the groove, the projecting face 16 engaging e Wall of the seat, this portion forming a tnlcrum so that a lever action is obtained between this point and the point engaged by the screws, to force the keeper against the knife or cutter. p

In Fig. 6, I have shown a modified form in which all of the various parts have been given the same reference characters with the such as is shown,

the cutter head,

As soon as ti; forward movement of v let: dispn 1 knife groove extending; Hie 42+ v iengti, oi the cutter head, there vein ""1 a recess 6 "nee/e1. Fhe Hildkfllfl'i; longit'idii any disposed 1: niceepea: "2" hr in cr0esopening into said groove and etztemii s 11 1110. is seafied. in' 1e undercut recess 1". fu'h length of the cutter head. a knife in J11 both of these @011 aLlUC'LiOIIS', the main groove a main keeper for said knife win keepers and aurg'lieiy keepers are locked the gwuwe. an auxiliary keeper Within from mdiel movement. Wi'ien it is desired recess in engagement with a portion, e1

keepe: and a portion of the wall of i sees, there being a plurality of tang" disposed screw threaded openings in {hm {er heal opening imo said recess and seem within said openings arranged to he i to lemon-3 the pares, 'ahe cutters are first. lemeved, then i; J keeper is retrieved, after which the auxiiiar keeper can he removed;

yement iein such that all of these parts can he iren'mved in a 1* i "rection, in

the above ei'deir. dmvmmrdly to force the auxiliary k The advante 'es of my invention result against a poriiun ()1? *ihe \E'Rii 4)? ;he from Que prex 10:1 01'? the kee er ivhieh ear and the m Kilim'y keeper to clamp the he ren'ioved 10m the knife seats in z radizii. Wiihin its seat, substantially as dieseldirection after the knife or cui; has A cutie? head having a lei iftu removed iherefrom, and wh is ioeked di osed knife groove extendin from radial movement Whenflxe euzs'i el in I eh of the cutter h xui, an mule its seat. iiurahen 1.1011'1 the v 'ovieion 01' opening into said groove an": 1 -11 :3 means applying g i'essui'e 30 r 11 length of the eu'tier head, a if a 11 L- its full 1e J1 be sla n OGYQM an auxiliary keeper 0; v iii. its seetion seated. Within. the

1 eh i e reeese and extending;- 1. length of the :f

er having one Win keeper 1'. gemen't with one N21 weing; a plurality of sci extending;

me in said op'enm emwei e W1 

